1.
Phys Rev Lett
; 90(20): 205001, 2003 May 23.
Artigo
em Inglês
| MEDLINE
| ID: mdl-12785901
RESUMO
Sawtooth oscillations have been observed in current-carrying helical plasmas by using electron-cyclotron-emission diagnostics in the Large Helical Device. The plasma current, which is driven by neutral beam injection, reduces the beta threshold of the sawtooth oscillation. When the central q value is increased due to the plasma current, the core region crashes, and, when it is decreased, the edge region crashes annularly. Observed rapid mixture of the plasma in the limited region suggests that these sawtooth crashes are reconnection phenomena. Unlike previous experiments, no precursor oscillation has been observed.
2.
Nihon Koshu Eisei Zasshi
; 45(6): 572-7, 1998 Jun.
Artigo
em Japonês
| MEDLINE
| ID: mdl-9755614